CN213898854U

CN213898854U - Barrel chassis opening and closing device for ultra-large-diameter rotary drilling bit

Info

Publication number: CN213898854U
Application number: CN202022094622.9U
Authority: CN
Inventors: 邵玉涛; 于好善; 赵明; 王兴无; 宋刚; 史兵言; 张化民; 贾炜; 董魏; 伍朝辉
Original assignee: Langfang Juli Exploration Technology Co Ltd
Current assignee: Langfang Juli Exploration Technology Co Ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-08-06
Anticipated expiration: 2030-09-22

Abstract

The utility model provides a barrel chassis device that opens and shuts for drill bit is dug soon to super large bore, including barrel and the motion that opens and shuts, the motion that opens and shuts is including hitting the cap, go up the pole that opens and shuts, the connecting rod that opens and shuts, lower pole that opens and shuts down, the activity hook seat, fixed hook seat, hit the pole top that opens and shuts on the cap rigid coupling, the articulated connecting rod that opens and shuts of pole lower extreme, the articulated pole that opens and shuts down of one end of connecting rod that opens and shuts down, the articulated one end of keeping away from the gib head that opens and shuts of lower part rigid coupling of pole that opens and shuts down, the articulated one end of opening and shutting the hook of activity hook seatA barrel chassis hook arranged on the chassis. The utility model discloses the advantage as follows: 1. the double-opening-closing movement mechanism can ensure the construction safety and the chassis opening-closing stability_；2. Each limit structure can accurately control the action displacement of the opening and closing hook and the opening and closing movement mechanism, so that the working accuracy is improved; 3. the movable hook seat and the fixed hook seat can protect the opening and closing hook from being damaged and destroyed easily, and the service life is prolonged.

Description

Barrel chassis opening and closing device for ultra-large-diameter rotary drilling bit

Technical Field

The utility model relates to a dig the drill bit soon, especially be used for the super large bore to dig the barrel chassis device that opens and shuts of drill bit soon.

Background

The rotary drilling rig is mainly applied to pile foundation drilling construction in engineering construction industry, and a rotary drilling bit is an important part of the rotary drilling rig. The rotary drilling rig and the rotary drilling bit are connected through the square head to carry out rotary drilling, slag soil generated in the drilling process enters the barrel through the rotary drilling bit cutting disc, after the whole barrel is filled with the slag soil, the drilling rig drives the rotary drilling bit to be lifted out of a hole and moves to a slag soil stacking position, the drilling rig controls the opening and closing mechanism to move to enable the barrel chassis and the cutting disc to be opened by pressing down the upper end of the opening and closing rod, and the slag soil is poured out. Traditional dig drill bit mechanism that opens and shuts soon mainly comprises opening and shutting pole, connecting rod, hook and opening and shutting pole nut, and the connecting rod both ends are connected with opening and shutting pole, hook respectively, and spacing opening and shutting pole nut is equipped with to opening and shutting pole upper end, and whole mechanism is overhead through an arc plate welding square. The opening and closing mechanism mainly aims at small and medium-sized rotary drilling rigs and has the following problems: the opening and closing rod has small bearing capacity and is not suitable for larger load; the whole mechanism is welded on the square head through an upper opening and closing rod rib plate, and is small in rigidity and easy to deform; the limit can only be adjusted by adjusting the height of the split-bar nut. If the opening and closing mechanism with the traditional structure is used on a rotary drilling bit with an ultra-large caliber (more than three meters in diameter), the reliability, the stability and the safety are not high, the working efficiency is influenced, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can long service life, reliable, the safe barrel chassis device that opens and shuts that is used for the super large bore to dig the drill bit soon.

The problem of the utility model is solved by the following technical scheme:

the utility model provides a barrel chassis device that opens and shuts that is used for super large bore to dig drill bit soon, includes barrel and the motion that opens and shuts, barrel upper portion fixed barrel hanging wall, barrel sub-unit connection barrel chassis, the motion that opens and shuts is including hitting the cap, going up the pole that opens and shuts, the connecting rod that opens and shuts, lower pole, activity hook seat, fixed hook seat and the hook that opens and shuts down, hits the pole top that opens and shuts on the cap rigid coupling, goes up the articulated connecting rod that opens and shuts of pole lower extreme, the pole that opens and shuts down of one end of connecting rod articulates, lower pole lower part rigid coupling activity hook seat that opens and shuts down, the articulated one end that the gib head kept away from the gib head of activity hook seat, the middle part of the hook that opens and shuts is articulated with fixed hook seat.

The cylinder chassis opening and closing device for the ultra-large-diameter rotary drilling bit further comprises an upper limiting plate and supporting plates, the upper limiting plate is fixed on the upper cylinder wall through the two supporting plates, a guide table is arranged on the lower portion of the collision cap, the guide table is in sliding fit with an upper limiting plate shaft hole, and the diameter of the collision cap is larger than that of the guide table.

The cylinder chassis cutting disc opening and closing mechanism for the ultra-large-diameter rotary drilling bit is characterized in that the upper opening and closing rod is sleeved with the spring, and two ends of the spring respectively touch and press the guide table and the upper disc.

The opening and closing mechanism for the cylinder chassis cutting disc of the ultra-large-caliber rotary drilling bit further comprises a guide sleeve, the guide sleeve is welded with the cylinder wall, and the lower opening and closing rod penetrates through the guide sleeve and is in sliding fit with the guide sleeve.

Above-mentioned a barrel chassis device that opens and shuts that is used for super large bore to dig drill bit soon, the articulated balancing piece stopper of connecting rod one end that opens and shuts, the trapezoidal of balancing stopper for invering, the top surface and the hanging wall constitution of balancing piece stopper are spacing the ascending of the motion of opening and shutting.

The cylinder chassis opening and closing device for the ultra-large-diameter rotary drilling bit is provided with two sets of opening and closing motion mechanisms which are arranged in parallel.

The utility model discloses dig the operation requirement of drill bit soon to the super large bore and design, its advantage as follows: 1. the double opening and closing movement mechanism can ensure the construction safety and the chassis opening and closing stability; 2. each limit structure can accurately control the action displacement of the opening and closing hook and the opening and closing movement mechanism, so that the working accuracy is improved; 3. the movable hook seat and the fixed hook seat can protect the opening and closing hook from being damaged and destroyed easily, and the service life is prolonged.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

FIG. 1 is a schematic view of the structure of the present invention assembled on a barrel;

FIG. 2 is a schematic view showing the assembly relationship of the crash cap, the upper opening and closing rod and the upper plate of the cylinder;

fig. 3 is a schematic structural view of the opening and closing movement mechanism.

The reference numbers in the figures are: 1. the device comprises a barrel, 2, an upper barrel disc, 3, an opening and closing connecting rod, 4, an upper opening and closing rod, 5, a collision cap, 5-1, a limiting table, 6, an upper limiting plate, 7, a lower opening and closing rod, 8, a movable hook seat, 9, a fixed hook seat, 10, an opening and closing hook, 11, a barrel chassis, 11-1, a chassis hook, 12, a supporting plate, 13, a spring, 14, a balance limiting block, 15 and a limiting sleeve.

Detailed Description

Referring to fig. 1-3, the utility model comprises a cylinder 1, a cylinder upper plate 2 fixed on the upper part of the cylinder, a cylinder bottom plate 11 connected on the lower part of the cylinder, and an opening and closing motion mechanism controlling the opening and closing of the cylinder bottom plate. In order to improve the working stability and the safety performance, the opening and closing movement mechanisms are provided with two sets, and the two sets of opening and closing mechanisms are arranged in parallel. The opening and closing movement mechanism comprises a collision cap 5, an upper opening and closing rod 4, an opening and closing connecting rod 3, a lower opening and closing rod 7, a movable hook seat 8, a fixed hook seat 9 and an opening and closing hook 10. The bumping cap is fixedly connected with the top of the upper opening-closing rod, the lower end of the upper opening-closing rod is hinged with the left side of the opening-closing connecting rod, the right end of the opening-closing connecting rod is hinged with the lower opening-closing rod, the lower part of the lower opening-closing rod is fixedly connected with a movable hook seat, the movable hook seat is hinged with one end of the opening-closing hook, which is far away from the hook head, the middle part of the opening-closing hook is hinged with a fixed hook seat, the fixed hook seat is fixed with the barrel, and the hook head of the opening-closing hook is fastened with a barrel chassis hook 11-1 arranged on a barrel chassis.

Still referring to fig. 1-3, the device is provided with an upper limiting plate 6. The upper limiting plate is fixed on the barrel upper plate through two supporting plates 12, a guide table 5-1 is arranged at the lower part of the collision cap, the guide table is in sliding fit with the shaft hole of the upper limiting plate, and the diameter of the collision cap is larger than that of the guide table. The height of the guide table determines the movement stroke of the upper opening and closing rod, and the excessive opening and closing hook opening caused by excessive movement is avoided. The upper opening and closing rod is sleeved with a spring 13, and two ends of the spring respectively touch and press the guide table and the upper disc. When the power head presses down the collision cap, the spring can play a role in buffering stress, and when the lower disc of the cylinder body is closed, the spring can play a role in resetting the upper opening-closing rod. The device is also provided with a guide sleeve 15, the guide sleeve is welded with the cylinder wall, and the lower opening and closing rod penetrates through the guide sleeve and is in sliding fit with the guide sleeve. The guide sleeve can realize motion guide to the lower opening-closing rod and the movable hook seat so as to keep the lower opening-closing rod and the movable hook seat to move vertically.

Still referring to fig. 1-3, one end of the opening and closing connecting rod is hinged with a balance block limiting block 14, the balance limiting block is in an inverted trapezoid shape, when the opening and closing movement mechanism goes upward, the top surface of the balance block limiting block and the upper disc form an upward limiting for the opening and closing movement mechanism, and the excessive upward movement of the opening and closing movement mechanism is avoided.

The working process of the utility model is as follows: the chassis of the rotary drilling rig is closed in the excavation process, the cutting disc is in contact with the ground, the excavated dregs continuously enter the barrel, after the dregs are filled in the barrel, the drilling rig stops rotating, the drill bit is lifted to the position above the ground and rotates to the position where the dregs are stacked, the power head is used for pressing down the collision cap, the collision cap drives the upper opening and closing rod to move downwards, the upper opening and closing rod drives the opening and closing connecting rod to move downwards, the opening and closing connecting rod drives the lower opening and closing rod and the movable hook seat to move downwards, the movable hook seat pushes the opening and closing hook to rotate, the cutting disc and the chassis are opened, and the dregs are poured out; after the dregs are cleaned, the drill bit is lowered to close the cutting disc and the chassis, the spring is reset to drive the upper opening-closing rod to move upwards, the opening-closing hook is buckled with the chassis hook again, and the rotary drilling bit enters the hole to continue working.

Claims

1. The utility model provides a barrel chassis device that opens and shuts that is used for super large bore to dig drill bit soon which characterized in that: the opening and closing mechanism comprises a collision cap (5), an upper opening and closing rod (4), an opening and closing connecting rod (3), a lower opening and closing rod (7), a movable hook seat (8), a fixed hook seat (9) and an opening and closing hook (10), wherein the collision cap is fixedly connected with the top of the upper opening and closing rod, the lower end of the upper opening and closing rod is hinged with the opening and closing connecting rod, one end of the opening and closing connecting rod is hinged with the lower opening and closing rod, the lower portion of the lower opening and closing rod is fixedly connected with the movable hook seat, the movable hook seat is hinged with one end of the opening and closing hook, which is far away from a hook head, the middle part of the opening and closing hook is hinged with the fixed hook seat, the fixed hook seat is fixed with the barrel body, and the hook head of the opening and closing hook is fastened with a barrel chassis hook (11-1) arranged on the barrel chassis.

2. The cylinder chassis opening and closing device for the ultra-large-caliber rotary drilling bit according to claim 1, characterized in that: the collision cap is characterized by further comprising an upper limiting plate (6) and supporting plates (12), wherein the upper limiting plate is fixed on the upper plate of the cylinder body through the two supporting plates (12), a guide table (5-1) is arranged on the lower portion of the collision cap, the guide table is in sliding fit with a shaft hole of the upper limiting plate, and the diameter of the collision cap is larger than that of the guide table.

3. The cylinder chassis opening and closing device for the ultra-large-caliber rotary drilling bit according to claim 2, characterized in that: the upper opening and closing rod is sleeved with a spring (13), and two ends of the spring respectively contact and press the guide table and the upper disc.

4. The cylinder chassis opening and closing device for the ultra-large-caliber rotary drilling bit according to claim 3, characterized in that: the guide sleeve (15) is welded with the cylinder wall, and the lower opening and closing rod penetrates through the guide sleeve and is in sliding fit with the guide sleeve.

5. The cylinder chassis opening and closing device for the ultra-large-caliber rotary drilling bit according to claim 4, characterized in that: one end of the opening and closing connecting rod is hinged with a balance block limiting block (14), the balance limiting block is in an inverted trapezoid shape, and the top surface of the balance block limiting block and the upper wall form an upward limit for the opening and closing movement mechanism.

6. The cylinder chassis opening and closing device for the ultra-large-caliber rotary drilling bit according to claim 5, characterized in that: the two sets of opening and closing motion mechanisms are arranged in parallel.